package com.hx.myblog3.entity.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.stereotype.Component;

import com.hx.myblog3.entity.User;

@Component
@ServletComponentScan
@WebFilter(urlPatterns="/admin/*",filterName="loginFilter")
public class LoginFilter implements Filter {

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain arg2)
			throws IOException, ServletException {
		HttpServletRequest request=(HttpServletRequest)arg0;
		HttpServletResponse response=(HttpServletResponse)arg1;
		HttpSession session=request.getSession();
		User user=(User)session.getAttribute("userinfo");
		if (user==null) {
			response.sendRedirect("/login.html");
		}
		else {
			arg2.doFilter(request, response);
		}
		
		
		
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		
	}
   

}
